Revision as of 11:12, 9 December 2001

In the language of measurement, 'dimensions' are measurable attributes of reality such as 'time', 'distance', 'velocity', 'mass', 'weight', and so on.

A system of Fundamental dimensions is such that every other dimension can be generated from them.

This system is considered by the System of Units made by

7

fundamental ones.

Traditionally, the accepted more used fundamental dimensions are

4

:

mass,

length,

time,

and electric current,

but, the other

3

fundamental dimensions can also be used for more complex physics problems:

(thermodynamic temperature,

amount of substance,

luminous intensity).

Velocity, for example, is length divided by time, and so can be generated from the above list of fundamental dimensions.

Physics call velocity a derived dimension.

Please See also: dimensional analysis

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@@ Line 5: / Line 5: @@
 A system of <b>Fundamental dimensions</b> is such that every other dimension can be generated from them.
-Traditionally, the accepted fundamental dimensions are [[mass]], [[length]], [[time]], and [[electric current]], but in principle, the 3 other fundamental dimensions could be used ([[thermodynamic temperature]], [[amount of substance]], [[luminous intensity]]).
+This system is considered by the [[SI|System of Units]] made by <h1>7</h1> fundamental ones.
+Traditionally, the accepted more used fundamental dimensions are <h1>4</h1>:
+# [[mass]],
+# [[length]],
+# [[time]],
+# and [[electric current]],
+but, the other <h1>3</h1>fundamental dimensions can also be used for more complex physics problems:
+# ([[thermodynamic temperature]],
+# [[amount of substance]],
+# [[luminous intensity]]).
@@ Line 19: / Line 45: @@
-'''See also:''' [[SI|SI system of units]], [[dimensional analysis]]
+Please '''See also:''' [[dimensional analysis]]